Search Results - "Townley, Mark A"

Appendage abnormalities in spiders induced by an alternating temperature protocol in the context of recent advances in molecular spider embryology by Napiórkowska, Teresa, Templin, Julita, Napiórkowski, Pawel, Townley, Mark A

“…In the literature there are numerous reports of developmental deformities in arthropods collected in their natural habitat. Since such teratogenically affected…”
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Hers and his: Silk glands used in egg sac construction by female spiders potentially repurposed by a ‘modern’ male spider by Townley, Mark A., Harms, Danilo

“…Cylindrical silk gland (CY) spigots distinguish a large clade of modern spiders, the CY spigot clade, which includes all entelegyne spiders and their closest…”
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Temperature fluctuations during embryonic development implicated in a naturally occurring instance of abnormal spinnerets in the spider Australomimetus maculosus (Araneae, Mimetidae) by Townley, Mark A., Harms, Danilo

“…We record developmental abnormalities of the spinnerets in a field-collected adult male specimen of Australomimetus maculosus. These include (1) a…”
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Functional Nanoassemblies with Mirror-Image Chiroptical Properties Templated by a Single Homochiral DNA Strand by Tannir, Shambhavi, Levintov, Lev, Townley, Mark A, Leonard, Brian M, Kubelka, Jan, Vashisth, Harish, Varga, Krisztina, Balaz, Milan

“…For the supramolecular chemistry of self-assembly systems, a major goal is to achieve the level of control of the assembly process equal to the capabilities of…”
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Distinct communities under the snow: describing characteristics of subnivium arthropod communities by Ziadeh, Christopher P., Ziadeh, Shayleigh B., Aflague, Breanne H., Townley, Mark A., Ayres, Matthew P., Contosta, Alexandra R., Garnas, Jeff R.

“…Arthropods are active during the winter in temperate regions. Many use the seasonal snowpack as a buffer against harsh ambient conditions and are active in a…”
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Giant polyploid epidermal cells and male pheromone production in the tephritid fruit fly Eurosta solidaginis (Diptera: Tephritidae) by Yip, Eric C., Mikó, István, Ulmer, Jonah M., Cherim, Nancy A., Townley, Mark A., Poltak, Steffen, Helms, Anjel M., De Moraes, Consuelo M., Mescher, Mark C., Tooker, John F.

“…[Display omitted] •Pheromone components detected in male pleural epidermal cells and rectum.•Pleural epidermal cells are 100 times larger in males (300–400 μm)…”
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Comparative study of spinning field development in two species of araneophagic spiders (Araneae, Mimetidae, Australomimetus) by Townley, Mark A., Harms, Danilo

“…External studies of spider spinning fields allow us to make inferences about internal silk gland biology, including what happens to silk glands when the spider…”
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Changes in composition of spider orb web sticky droplets with starvation and web removal, and synthesis of sticky droplet compounds by Townley, Mark A, Tillinghast, Edward K, Neefus, Christopher D

“…The sticky spiral of araneoid spider orb webs consists of silk fibers coated with adhesive droplets. The droplets contain a variety of low-molecular-mass…”
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Developmental changes in spider spinning fields: a comparison between Mimetus and Araneus (Araneae: Mimetidae, Araneidae) by TOWNLEY, MARK A, TILLINGHAST, EDWARD K

“…As part of an effort to understand the changes that piriform (Pi) and aciniform (Ac) silk glands undergo throughout the molt-intermolt cycle, spinnerets from…”
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Phylogenetic affinities of Phobetinus to other pirate spider genera (Araneae: Mimetidae) as indicated by spinning field morphology by Townley, Mark A., Harms, Danilo, Benjamin, Suresh P.

“…Spinnerets from Phobetinus sagittifer and an undescribed Phobetinus species were examined by scanning electron microscopy to gain a better understanding of…”
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From Spinning Silk to Spreading Saliva: Mouthpart Remodeling in Manduca sexta (Lepidoptera: Sphingidae) by Mikó, István, Rahman, Sarthok Rasique, Jones, Anne C., Townley, Mark A., Gominho, Brandon, Paudel, Sulav, Stupski, S. David, Hines, Heather M., Schilder, Rudolf J.

“…As a model organism, the tobacco hornworm Manduca sexta (Linnaeus 1763) has contributed much to our knowledge of developmental processes in insects, and major…”
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Small Organic Solutes in Sticky Droplets from Orb Webs of the Spider Zygiella atrica (Araneae; Araneidae): β-Alaninamide Is a Novel and Abundant Component by Townley, Mark A., Pu, Qinglin, Zercher, Charles K., Neefus, Christopher D., Tillinghast, Edward K.

“…In northeastern North America, Zygiella atrica often build their orb webs near the ocean. We analyzed individual field‐built Z. atrica webs to determine if…”
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Compounds in the droplets of the orb spider's viscid spiral by Vollrath, F, Fairbrother, W.J, Williams, R.J.P, Tillinghast, E.K, Bernstein, D.T, Gallagher, K.S, Townley, M.A

“…The orb web of the garden spider Araneus diadematus, like those of other ecribellate orb spiders, relies on the remarkable extensibility of its sticky capture…”
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Free amino acids in spider hemolymph by Tillinghast, Edward K., Townley, Mark A.

“…We examined the free amino acid composition of hemolymph from representatives of five spider families with an interest in knowing if the amino acid profile in…”
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Astacin family metallopeptidases and serine peptidase inhibitors in spider digestive fluid by Foradori, Matthew J., Tillinghast, Edward K., Smith, J. Stephen, Townley, Mark A., Mooney, Robert E.

“…Digestive fluid of the araneid spider Argiope aurantia is known to contain zinc metallopeptidases. Using anion-exchange chromatography, size-exclusion…”
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Moult-Related Changes in Ampullate Silk Gland Morphology and Usage in the Araneid Spider Araneus cavaticus by Townley, Mark A., Tillinghast, Edward K., Cherim, Nancy A.

“…Major ampullate (MaA) and minor ampullate (MiA) silk glands of juvenile Araneus cavaticus (third to penultimate instars) were examined by dissection at various…”
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Developmental changes in spider spinning fields: a comparison between Mimetus and Araneus (Araneae: Mimetidae, Araneidae): SPINNING FIELDS OF MIMETUS AND ARANEUS by TOWNLEY, MARK A., TILLINGHAST, EDWARD K.

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Excitatory Actions of FMRFamide-Related Peptides (FaRPs) on the Neurogenic Limulus Heart by Groome, James R., Townley, Mark A., Watson, Winsor H.

“…The actions of FMRFamide-related peptides (FaRPs) on the neurogenic heart of the horseshoe crab, Limulus polyphemus, were investigated. Excitatory chronotropic…”
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ON THE USE OF AMPULLATE GLAND SILKS BY WOLF SPIDERS (ARANEAE, LYCOSIDAE) FOR ATTACHING THE EGG SAC TO THE SPINNERETS AND A PROPOSAL FOR DEFINING NUBBINS AND TARTIPORES by Townley, Mark A., Tillinghast, Edward K.

“…The means by which female wolf spiders attach an egg sac to their spinnerets was investigated using scanning electron microscopy. In four Pardosa species, we…”
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VARIATION IN THE CHEMICAL COMPOSITION OF ORB WEBS BUILT BY THE SPIDER NEPHILA CLAVIPES (ARANEAE, TETRAGNATHIDAE) by Higgins, Linden E., Townley, Mark A., Tillinghast, Edward K., Rankin, Mary Ann

“…The adhesive droplets in the orb webs of araneoid spiders contain, among other constituents, an aqueous solution of organic low-molecular-weight compounds. The…”
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